(19)
(11) EP 1 589 939 A2

(12)

(88) Date of publication A3:
14.10.2004

(43) Date of publication:
02.11.2005 Bulletin 2005/44

(21) Application number: 04708262.3

(22) Date of filing: 04.02.2004
(51) International Patent Classification (IPC)7A61K 7/20
(86) International application number:
PCT/US2004/003443
(87) International publication number:
WO 2004/071323 (26.08.2004 Gazette 2004/35)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 05.02.2003 US 359548

(71) Applicants:
  • Corium International
    Redwood City, CA 94063 (US)
  • A.V. Topchiev Institute of Petrochemical Synthesis
    Moscow, 117912 (RU)

(72) Inventors:
  • SINGH, Parminder
    San Francisco, CA 94116 (US)
  • CLEARY, Gary W.
    Los Altos Hills, CA 94022 (US)
  • MUDUMBA, Sri
    Union City, CA 94587 (US)
  • FELDSTEIN, Mikhail M.
    Moscow, 119415 (RU)
  • BAIRAMOV, Danir F.
    Korpus 2,Moscow 117292 (RU)

(74) Representative: Mallalieu, Catherine Louise 
D Young & Co 120 Holborn
London EC1N 2DY
London EC1N 2DY (GB)

   


(54) HYDROGEL COMPOSITIONS FOR TOOTH WHITENING